Cita APA (7th ed.)

Collier, C. P. (1976). Geometry for teachers. Houghton Mifflin.

Cita Chicago (17th ed.)

Collier, C. Patrick. Geometry for Teachers. Boston: Houghton Mifflin, 1976.

Cita MLA (9th ed.)

Collier, C. Patrick. Geometry for Teachers. Houghton Mifflin, 1976.